Methods

Additionally, some victims have the top of their skulls cut off, and their brains removed. Sylar can replicate the special powers of his victims because he has intuitive aptitude, the ability to see how things work. (Six Months Ago)

Mohinder Suresh discovers that Sylar owns an extensive collection of autopsy books in his apartment. It is implied that Sylar is perfecting his technique. (One Giant Leap)

At the Carnival in Central Park, Sylar faces off with Doyle to save Emma Coolidge. After Emma incapacitates Doyle with a blast, Sylar telekinetically pins Doyle to the ground and subdues him, but ties him up with light cables rather than kill him.

When the agent draws her gun on Sylar and orders him to stop, she is somehow hurled backward. Sylar then makes her point her gun at her own head. Matt arrives and fires several shots at the suspect, ending the ordeal.

Sylar tries to finish Hiro by throwing him across Kirby Plaza, but Hiro teleports away before crashing into the building behind him.When Hiro alters time to save Charlie Andrews, Sylar repeatedly attacks him, but Hiro freezes time each time to free himself and makes a deal with Sylar who agrees after detecting Hiro's tumor.

Sylartelekinetically pins Peter to the wall and unsuccessfully attempts to cut the top of Peter's head off. When Peter starts to regenerate, Sylar is startled long enough for Peter to break free, but Sylar impales him in the back of the head with a shard of glass, killing Peter before Mohinder subdues him. Peter is able to regenerate after Claire removes the glass.

Sylar telekinetically chokes Peter, then uses a parking meter to hit him. However, Niki Sanders takes the meter and knocks Sylar to the ground before Peter absorbs her enhanced strength and uses it to beat on Sylar.

Sylar battles Peter and Nathan in the Stanton Hotel, throwing Peter to the floor, but not before he successfully takes shape shifting from him, leaving him with some cuts and bruises. Peter later defeats Sylar by injecting him with a tranquilizer.

Sylar attacks Peter and Angela at Thanksgiving dinner after regaining control from Nathan's mind. He pins Peter to the wall and attempts to cut open Angela's head, but Nathan manages to regain control and fly away before he can do anything else.

Memorable Quotes

"We've pieced a trail across a dozen states. All people impaled by household objects. Bones broken. All without any traceable sign of physical contact. But only some of them involve any mutilation of the head or neck, so they don't see the connections."

Audrey Hanson states that eight murders are linked to Sylar, which would exclude murders done after the killing of the unnamed FBI agent. (Nothing to Hide)

Audrey Hanson states that she's pieced together a trail connected to Sylar across a dozen states, implying that he's killed at least 11 people before killing James Walker and his wife. (One Giant Leap)

Sylar tends to assume the identity of his victims. He has used the identities of Zane Taylor, Nathan Petrelli, James Martin, and Isaac Mendez to his advantage after killing them. He has also used Mohinder's identity when falsely identified by Zane, and Micah's identity when falsely identified by Tom Miller.

Sylar has killed at least 50 people. In Pass/Fail, the Sylar in Hiro's subconscious claims he may have killed hundreds.